On 10 December 2019, the European Court of Human Rights (ECtHR) marked Human Rights Day by issuing a judgment of great potential significance in the case of Osman Kavala, a prominent human rights activist who has been detained for his alleged role in the 2013 Gezi Park Protests and the July 2016 coup attempt. In Kavala v Turkey, the Court found violations of Article 5(1) of the European Convention on Human Rights (Convention) on the lack of reasonable suspicion that the applicant had committed an offence; Article 5(4) of the Convention on the lack of a speedy judicial review on arbitrary detention; and Article 18 of the Convention, on the prohibition of restrictions of rights for unauthorised purposes, in conjunction with Article 5(1). See here for a detailed summary.